<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/home/req3" method="get">
    <input type="text" name="username"><br>
    <input type="password" name="password"><br>
    <input type="checkbox" name="hobby" value="1"> 游泳
    <input type="checkbox" name="hobby" value="2"> 爬山 <br>
    <input type="submit">
</form>
</body>
</html>